Right. I don't think you would need windows if your using a mac osx. supported na man sa mac ang mga windows apps except lang sa ActiveX. and besides, daghan "out of the box" features/apps ang mac na wala sa windows. that means gamay ra na 3rd party apps imo kinahanglan i-dungag (that is if u really want to get a lil more from ur mac). u won't need any antivirus software and so far i haven't experienced any instance that my mac has crashed. and also, i can use it to connect to our network in our office. downside lang, u won't be satisfied if you're a game

r. i've been using windows since i first put my hands on a pc and i've been introduced to mac osx for a year now, pero mas comfortable ko sa mac (maybe coz i'm not a gamer). well, as what they said previously, depende man pod na sa ato preference. windows could also be better in some ways.
btw, i'm using MacBook Pro 15" i bought it a few months back here in UAE (pro made in china ang tatak! ahak oy!).